Bud Boosters

Many growers look for products to improve their plants and achieve the best performance from them, which is why you can now buy fertilisers for cannabis cultivation on the Growlobby website, as well as the best bud bulkers that we're now going to explain to you.

Featured in Bud Boosters

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What are bud bulkers?

A bud bulker is a type of fertiliser designed to maximise flower volume and density during the flowering phase. Also known as bud fatteners, these products are rich in phosphorus (P) and potassium (K), essential elements for developing more compact buds, resinous flowers with a better profile of terpenes and cannabinoids.

They are used in the second half of the flowering phase to stimulate the production of larger and heavier flowers.

Their main function is to provide an extra boost of phosphorus and potassium (PK), two essential nutrients for bud fattening:

  • Phosphorus (P): Promotes terpene and cannabinoid production and is key in the structural development of buds.
  • Potassium (K): Improves plant metabolism, increases flower density and strengthens resistance to stress.

These fertilisers are available in liquid or powder format, and there are both organic and mineral alternatives, each with specific characteristics depending on the type of crop.

Benefits of using fattening fertilisers

Using a bud bulker during the flowering phase offers multiple advantages for plant development and the final quality of your harvest:

  • Increases bud size and density
  • Promotes greater resin and terpene production
  • Optimises plant metabolism during flowering
  • Strengthens resistance to pests and environmental stress
  • Improves overall harvest yield

To get the best results, it is essential to apply them at the right time and adjust their use to your crop's needs.

How to choose the best bud bulker

When selecting the best fattening fertiliser, you should consider different factors that will influence how the plant absorbs and assimilates the nutrients.

  • Composition:
    • Organic: Better for living soils and peat, promotes microbial activity
    • Mineral: Faster and more effective in hydroponic systems or coco crops
  • Plant genetics: Some varieties need an extra PK boost to develop more compact buds
  • Manufacturer: Many users consider the brand when choosing
  • Type:
    • High in PK
      • Monster Bloom Grotek
      • PK 13 14 Atami
      • Overdrive
      • Canna PK 13 14
      • Blossom Builder Bcuzz
      • Organic PK Booster
    • Flowering stimulator
      • Big Bud Advanced Nutrients
      • Bud Candy
      • Top Max Biobizz
      • Heavy Bud Pro
    • All-in-one
      • Bloombastic
      • Plagron Green Sensation

Bud fattener: maximum power during flowering

The term bud fattener refers to the most powerful fertilisers for fattening, formulated with high concentrations of phosphorus and potassium (PK).

These products are designed to provide an extra boost in the final flowering phase, maximising the production of compact flowers with more resin and a more intense aromatic profile.

If you're looking for XXL buds in your harvest, bud fatteners are the best option to boost the size and density of your flowers.

Remember that on our website you have a wide catalogue of products to improve your crop, and that in addition to getting the bud bulkers we tell you about here, you can buy rooting hormone and other products for your crop. 

Preguntas frecuentes de Bud Boosters

When should I start using a bud fattener?

Bud boosters are typically started during the mid-flowering stage. From the 4th to the 6th week of flowering is usually the ideal time to apply this type of bulking additive. Depending on the flowering time of each genetic, you can adjust its application, but we always recommend reducing the dose during the final two weeks to ensure the best flavour and aroma.

How does a bud fattener affect the flavour and quality of buds?

Applying a bud booster can affect the flavour and quality of the flowers in cases of over-fertilisation or improper use. It is important to follow the manufacturer's recommendations, provide the best environmental conditions for your plants, and reduce the application during the final two weeks of flowering.

What is the best bud fattener?

There are many opinions, but from Growlobby we recommend some of the most popular amongst our customers.

  • Bloombastic Atami
  • Top Max Biobizz
  • Bud Candy
  • Delta Nueve
  • Heavy Bud Pro
  • More Grams Cannaboom

All of these bud boosters will provide you with an immediate bulking effect that improves the yield of all types of crops. Follow the instructions for application.

In which week do buds fatten the most?

Buds bulk up most between the sixth and eighth week of flowering, although this can vary depending on the plant's genetics and type of cultivation. There are faster genetics whose bulking signs begin to appear during the 5th week, and others that don't start to gain size and weight until the 7th week.

How many days without water before harvesting?

Before harvesting, many growers leave the plant without water for 2 to 5 days to improve drying and enhance the aromas and flavours of the buds. However, the exact time depends on the type of cultivation, the plant's condition, and environmental factors.